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DP-800 Questions & Answers
Exam Code: DP-800
Exam Name: Developing AI-Enabled Database Solutions
Certification Provider: Microsoft
DP-800 Premium File
101 Questions & Answers
Last Update: Nov 12, 2026
Includes questions types found on actual exam such as drag and drop, simulation, type in, and fill in the blank.
Verified by experts
DP-800 Questions & Answers
Exam Code: DP-800
Exam Name: Developing AI-Enabled Database Solutions
Certification Provider: Microsoft
DP-800 Premium File
101 Questions & Answers
Last Update: Nov 12, 2026
Includes questions types found on actual exam such as drag and drop, simulation, type in, and fill in the blank.
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Developing AI-Enabled Database Solutions DP-800 Practice Test 43

Question 420

The reviewer rejects the current behavior: SELECT star in a persistent contract can silently change column exposure. The actual requirement is: Several applications depend on an existing reporting view while underlying normalized tables need to be refactored. Which corrective implementation addresses the cause?

  1. Create a scalar function with a single scalar return value where reusable SQL abstraction is justified
  2. Implement a stored procedure with explicit parameters and transactional error handling
  3. Create a targeted AFTER UPDATE trigger that records appropriate audit details without recursively altering data
  4. Maintain a stable, explicitly defined view projection while changing its underlying implementation

Explanation

Correct Answer

D:

Maintain a stable, explicitly defined view projection while changing its underlying implementation. A view can separate consumer query contracts from physical table organization. This directly corrects the observed failure, and success can be checked because applications keep receiving the same column contract after the table refactor.

Incorrect Answers

A:

A scalar function encapsulates a reusable value calculation that can be invoked in expressions. Although relevant to the invoice query repeats a deterministic expression returning a single derived tax band for each row, this action would not correct the recorded production failure: sELECT star in a persistent contract can silently change column exposure. Use the target remedy instead.

B:

Stored procedures encapsulate multi-statement database operations and their execution contract. Although relevant to order registration must validate stock, insert a reservation, and return a status through one managed database interface, this action would not correct the recorded production failure: sELECT star in a persistent contract can silently change column exposure. Use the target remedy instead.

C:

A DML trigger executes in response to the table modification within its transaction. Although relevant to a regulated SQL table must populate a change-audit table automatically when an UPDATE occurs even from legacy applications, this action would not correct the recorded production failure: sELECT star in a persistent contract can silently change column exposure. Use the target remedy instead.

Question 421

A development review identifies this database requirement: An API must submit 500 inventory adjustments in one network call to a SQL Server stored procedure. Which implementation best satisfies this requirement?

  1. Use a table-valued parameter of a defined user table type for the procedure
  2. Limit trigger scope and prevent unwanted nested or recursive behavior while testing multirow updates
  3. Maintain a stable, explicitly defined view projection while changing its underlying implementation
  4. Create a view exposing only the approved columns and grant access to the view

Explanation

Correct Answer

A:

TVPs carry sets of strongly typed rows across a procedure call. For this stated production need, the recommended implementation is: Use a table-valued parameter of a defined user table type for the procedure. Evidence to look for: the procedure processes the submitted batch with one call and validated row types.

Incorrect Answers

B:

Triggers operate on sets of inserted and deleted rows and may interact through nested DML. That method solves a different requirement: an AFTER UPDATE audit trigger writes to an audit table but accidentally invokes another trigger and causes repeated writes. The current case instead requires use a table-valued parameter of a defined user table type for the procedure.

C:

A view can separate consumer query contracts from physical table organization. That method solves a different requirement: several applications depend on an existing reporting view while underlying normalized tables need to be refactored. The current case instead requires use a table-valued parameter of a defined user table type for the procedure.

D:

Views provide a stable query surface and can mediate projection and permissions. That method solves a different requirement: a database team wants analysts to see an approved projection of customer records without receiving direct permission on the base table. The current case instead requires use a table-valued parameter of a defined user table type for the procedure.

Question 422

The engineer chooses the following change: Use a table-valued parameter of a defined user table type for the procedure. Given that an API must submit 500 inventory adjustments in one network call to a SQL Server stored procedure. Which technical principle most directly explains why it works?

  1. A scalar function encapsulates a reusable value calculation that can be invoked in expressions
  2. TVPs carry sets of strongly typed rows across a procedure call
  3. An inline TVF exposes a composable rowset and can be joined or filtered by callers
  4. A DML trigger executes in response to the table modification within its transaction

Explanation

Correct Answer

B:

TVPs carry sets of strongly typed rows across a procedure call. This explains why the selected approach meets the requirement rather than merely changing a nearby service. A confirming observation is: the procedure processes the submitted batch with one call and validated row types.

Incorrect Answers

A:

A scalar function encapsulates a reusable value calculation that can be invoked in expressions. That principle is applicable when the invoice query repeats a deterministic expression returning a single derived tax band for each row. It does not explain the selected change in the current case, which depends on tVPs carry sets of strongly typed rows across a procedure call.

C:

An inline TVF exposes a composable rowset and can be joined or filtered by callers. That principle is applicable when a multi-tenant report must call a reusable parameterized query returning all invoices for a requested account. It does not explain the selected change in the current case, which depends on tVPs carry sets of strongly typed rows across a procedure call.

D:

A DML trigger executes in response to the table modification within its transaction. That principle is applicable when a regulated SQL table must populate a change-audit table automatically when an UPDATE occurs even from legacy applications. It does not explain the selected change in the current case, which depends on tVPs carry sets of strongly typed rows across a procedure call.

Question 423

A staging acceptance test is being designed for this change: Use a table-valued parameter of a defined user table type for the procedure. The check must catch this potential failure: Sending hundreds of comma-joined IDs requires fragile parsing and type handling. Which observed outcome demonstrates the desired behavior?

  1. A multirow UPDATE creates precisely the intended audit rows without recursion
  2. Applications keep receiving the same column contract after the table refactor
  3. The procedure processes the submitted batch with one call and validated row types
  4. Analyst queries return the allowed projection without direct base-table SELECT permission

Explanation

Correct Answer

C:

The procedure processes the submitted batch with one call and validated row types. This is the direct acceptance criterion because tVPs carry sets of strongly typed rows across a procedure call. The validation should also distinguish the failure condition: sending hundreds of comma-joined IDs requires fragile parsing and type handling.

Incorrect Answers

A:

A multirow UPDATE creates precisely the intended audit rows without recursion. That observation would validate a different requirement: an AFTER UPDATE audit trigger writes to an audit table but accidentally invokes another trigger and causes repeated writes. Here the required evidence is the procedure processes the submitted batch with one call and validated row types.

B:

Applications keep receiving the same column contract after the table refactor. That observation would validate a different requirement: several applications depend on an existing reporting view while underlying normalized tables need to be refactored. Here the required evidence is the procedure processes the submitted batch with one call and validated row types.

D:

Analyst queries return the allowed projection without direct base-table SELECT permission. That observation would validate a different requirement: a database team wants analysts to see an approved projection of customer records without receiving direct permission on the base table. Here the required evidence is the procedure processes the submitted batch with one call and validated row types.

Question 424

The production rollout exhibits this defect: Sending hundreds of comma-joined IDs requires fragile parsing and type handling. The actual requirement is: An API must submit 500 inventory adjustments in one network call to a SQL Server stored procedure. Which corrective implementation addresses the cause?

  1. Create a targeted AFTER UPDATE trigger that records appropriate audit details without recursively altering data
  2. Limit trigger scope and prevent unwanted nested or recursive behavior while testing multirow updates
  3. Create a scalar function with a single scalar return value where reusable SQL abstraction is justified
  4. Use a table-valued parameter of a defined user table type for the procedure

Explanation

Correct Answer

D:

Use a table-valued parameter of a defined user table type for the procedure. TVPs carry sets of strongly typed rows across a procedure call. This directly corrects the observed failure, and success can be checked because the procedure processes the submitted batch with one call and validated row types.

Incorrect Answers

A:

A DML trigger executes in response to the table modification within its transaction. Although relevant to a regulated SQL table must populate a change-audit table automatically when an UPDATE occurs even from legacy applications, this action would not correct the recorded production failure: sending hundreds of comma-joined IDs requires fragile parsing and type handling. Use the target remedy instead.

B:

Triggers operate on sets of inserted and deleted rows and may interact through nested DML. Although relevant to an AFTER UPDATE audit trigger writes to an audit table but accidentally invokes another trigger and causes repeated writes, this action would not correct the recorded production failure: sending hundreds of comma-joined IDs requires fragile parsing and type handling. Use the target remedy instead.

C:

A scalar function encapsulates a reusable value calculation that can be invoked in expressions. Although relevant to the invoice query repeats a deterministic expression returning a single derived tax band for each row, this action would not correct the recorded production failure: sending hundreds of comma-joined IDs requires fragile parsing and type handling. Use the target remedy instead.

Question 425

The SQL platform team receives the following production requirement: An AFTER UPDATE audit trigger writes to an audit table but accidentally invokes another trigger and causes repeated writes. Which implementation best satisfies this requirement?

  1. Limit trigger scope and prevent unwanted nested or recursive behavior while testing multirow updates
  2. Use a table-valued parameter of a defined user table type for the procedure
  3. Implement a parameterized inline table-valued function returning a table expression
  4. Create a view exposing only the approved columns and grant access to the view

Explanation

Correct Answer

A:

Triggers operate on sets of inserted and deleted rows and may interact through nested DML. For this stated production need, the recommended implementation is: Limit trigger scope and prevent unwanted nested or recursive behavior while testing multirow updates. Evidence to look for: a multirow update creates precisely the intended audit rows without recursion.

Incorrect Answers

B:

TVPs carry sets of strongly typed rows across a procedure call. That method solves a different requirement: an API must submit 500 inventory adjustments in one network call to a SQL Server stored procedure. The current case instead requires limit trigger scope and prevent unwanted nested or recursive behavior while testing multirow updates.

C:

An inline TVF exposes a composable rowset and can be joined or filtered by callers. That method solves a different requirement: a multi-tenant report must call a reusable parameterized query returning all invoices for a requested account. The current case instead requires limit trigger scope and prevent unwanted nested or recursive behavior while testing multirow updates.

D:

Views provide a stable query surface and can mediate projection and permissions. That method solves a different requirement: a database team wants analysts to see an approved projection of customer records without receiving direct permission on the base table. The current case instead requires limit trigger scope and prevent unwanted nested or recursive behavior while testing multirow updates.

Question 426

The design document proposes the following implementation: Limit trigger scope and prevent unwanted nested or recursive behavior while testing multirow updates. Given that an AFTER UPDATE audit trigger writes to an audit table but accidentally invokes another trigger and causes repeated writes. Which technical principle most directly explains why it works?

  1. A view can separate consumer query contracts from physical table organization
  2. Triggers operate on sets of inserted and deleted rows and may interact through nested DML
  3. Stored procedures encapsulate multi-statement database operations and their execution contract
  4. A scalar function encapsulates a reusable value calculation that can be invoked in expressions

Explanation

Correct Answer

B:

Triggers operate on sets of inserted and deleted rows and may interact through nested DML. This explains why the selected approach meets the requirement rather than merely changing a nearby service. A confirming observation is: a multirow update creates precisely the intended audit rows without recursion.

Incorrect Answers

A:

A view can separate consumer query contracts from physical table organization. That principle is applicable when several applications depend on an existing reporting view while underlying normalized tables need to be refactored. It does not explain the selected change in the current case, which depends on triggers operate on sets of inserted and deleted rows and may interact through nested DML.

C:

Stored procedures encapsulate multi-statement database operations and their execution contract. That principle is applicable when order registration must validate stock, insert a reservation, and return a status through one managed database interface. It does not explain the selected change in the current case, which depends on triggers operate on sets of inserted and deleted rows and may interact through nested DML.

D:

A scalar function encapsulates a reusable value calculation that can be invoked in expressions. That principle is applicable when the invoice query repeats a deterministic expression returning a single derived tax band for each row. It does not explain the selected change in the current case, which depends on triggers operate on sets of inserted and deleted rows and may interact through nested DML.

Question 427

A release reviewer must verify the effect of this implementation: Limit trigger scope and prevent unwanted nested or recursive behavior while testing multirow updates. The check must catch this potential failure: Assuming only one updated row per trigger invocation loses audit events. Which observed outcome demonstrates the desired behavior?

  1. The procedure processes the submitted batch with one call and validated row types
  2. SELECT from the TVF returns only rows for the supplied account parameter
  3. A multirow UPDATE creates precisely the intended audit rows without recursion
  4. Analyst queries return the allowed projection without direct base-table SELECT permission

Explanation

Correct Answer

C:

A multirow UPDATE creates precisely the intended audit rows without recursion. This is the direct acceptance criterion because triggers operate on sets of inserted and deleted rows and may interact through nested DML. The validation should also distinguish the failure condition: assuming only one updated row per trigger invocation loses audit events.

Incorrect Answers

A:

The procedure processes the submitted batch with one call and validated row types. That observation would validate a different requirement: an API must submit 500 inventory adjustments in one network call to a SQL Server stored procedure. Here the required evidence is a multirow UPDATE creates precisely the intended audit rows without recursion.

B:

SELECT from the TVF returns only rows for the supplied account parameter. That observation would validate a different requirement: a multi-tenant report must call a reusable parameterized query returning all invoices for a requested account. Here the required evidence is a multirow UPDATE creates precisely the intended audit rows without recursion.

D:

Analyst queries return the allowed projection without direct base-table SELECT permission. That observation would validate a different requirement: a database team wants analysts to see an approved projection of customer records without receiving direct permission on the base table. Here the required evidence is a multirow UPDATE creates precisely the intended audit rows without recursion.

Question 428

A regression is reported after deployment: Assuming only one updated row per trigger invocation loses audit events. The actual requirement is: An AFTER UPDATE audit trigger writes to an audit table but accidentally invokes another trigger and causes repeated writes. Which corrective implementation addresses the cause?

  1. Maintain a stable, explicitly defined view projection while changing its underlying implementation
  2. Create a scalar function with a single scalar return value where reusable SQL abstraction is justified
  3. Implement a stored procedure with explicit parameters and transactional error handling
  4. Limit trigger scope and prevent unwanted nested or recursive behavior while testing multirow updates

Explanation

Correct Answer

D:

Limit trigger scope and prevent unwanted nested or recursive behavior while testing multirow updates. Triggers operate on sets of inserted and deleted rows and may interact through nested DML. This directly corrects the observed failure, and success can be checked because a multirow UPDATE creates precisely the intended audit rows without recursion.

Incorrect Answers

A:

A view can separate consumer query contracts from physical table organization. Although relevant to several applications depend on an existing reporting view while underlying normalized tables need to be refactored, this action would not correct the recorded production failure: assuming only one updated row per trigger invocation loses audit events. Use the target remedy instead.

B:

A scalar function encapsulates a reusable value calculation that can be invoked in expressions. Although relevant to the invoice query repeats a deterministic expression returning a single derived tax band for each row, this action would not correct the recorded production failure: assuming only one updated row per trigger invocation loses audit events. Use the target remedy instead.

C:

Stored procedures encapsulate multi-statement database operations and their execution contract. Although relevant to order registration must validate stock, insert a reservation, and return a status through one managed database interface, this action would not correct the recorded production failure: assuming only one updated row per trigger invocation loses audit events. Use the target remedy instead.

Question 429

Before approving the database change, the architect reviews this case: A complex query repeats the same filtered sales subquery in three downstream aggregations and needs readable decomposition. Which implementation best satisfies this requirement?

  1. Use named nonrecursive CTEs to structure the intermediate relational expressions
  2. Use supported JSON_OBJECT construction with named properties
  3. Use OPENJSON with an appropriate path and WITH schema for typed projected fields
  4. Use DENSE_RANK partitioned by month ordered descending and filter the top rank

Explanation

Correct Answer

A:

CTEs define query-scoped named result expressions, improving composability and clarity. For this stated production need, the recommended implementation is: Use named nonrecursive CTEs to structure the intermediate relational expressions. Evidence to look for: the rewritten query returns identical aggregates and has a readable execution plan.

Incorrect Answers

B:

Native JSON constructors handle escaping and represent values structurally. That method solves a different requirement: a SQL API needs to return one structured JSON object per customer instead of manually building a quoted string. The current case instead requires use named nonrecursive CTEs to structure the intermediate relational expressions.

C:

OPENJSON expands JSON array entries into a relational rowset and can type columns. That method solves a different requirement: a service receives JSON arrays of product lines and must extract one relational row per array element in T-SQL. The current case instead requires use named nonrecursive CTEs to structure the intermediate relational expressions.

D:

Equal ordered values share the same dense rank and all top ties survive. That method solves a different requirement: a ranking report must display all salespeople tied for highest monthly sales. The current case instead requires use named nonrecursive CTEs to structure the intermediate relational expressions.

Question 430

The security and data engineering reviewers accept this action: Use named nonrecursive CTEs to structure the intermediate relational expressions. Given that a complex query repeats the same filtered sales subquery in three downstream aggregations and needs readable decomposition. Which technical principle most directly explains why it works?

  1. MATCH relates graph nodes through declared edge patterns
  2. CTEs define query-scoped named result expressions, improving composability and clarity
  3. EXISTS tests whether a related row exists, without joining or repeating the parent
  4. Regular-expression replacement transforms matched substrings according to the pattern

Explanation

Correct Answer

B:

CTEs define query-scoped named result expressions, improving composability and clarity. This explains why the selected approach meets the requirement rather than merely changing a nearby service. A confirming observation is: the rewritten query returns identical aggregates and has a readable execution plan.

Incorrect Answers

A:

MATCH relates graph nodes through declared edge patterns. That principle is applicable when a SQL graph model stores follows relationships between accounts and needs paths connecting related nodes. It does not explain the selected change in the current case, which depends on cTEs define query-scoped named result expressions, improving composability and clarity.

C:

EXISTS tests whether a related row exists, without joining or repeating the parent. That principle is applicable when a report must include only customers who have at least one unpaid invoice without multiplying customer rows. It does not explain the selected change in the current case, which depends on cTEs define query-scoped named result expressions, improving composability and clarity.

D:

Regular-expression replacement transforms matched substrings according to the pattern. That principle is applicable when a contact normalization job must remove punctuation from legacy phone strings using supported regex replacements. It does not explain the selected change in the current case, which depends on cTEs define query-scoped named result expressions, improving composability and clarity.

Developing AI-Enabled Database Solutions (DP-800) Practice Tests

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